There seem to be a lot of posts to forums all over the Web with this problem, but not a lot of solutions.
I recently gave my girlfriend my old Palm Vx because she wanted to use it for a project she was working on. The problem is, we don't seem to be able to connect it to any of the computers we own using any kind of cable.
We have a PowerBook G4, an iBook G4, and a very new Gateway Laptop. Best case scenario is we get it working on one of the two Macs. The Vx came with a serial cable and a cradle that also connects via serial. We have the official "Palm for Macintosh" USB -> serial plug, and a 3rd party plug, Dynex. I think we also tried a Belkan plug at one point but I'm not sure.
The problem is we plug everything in, set all of the settings hit sync and...nada, the device starts to connect and then times out with a "chirp" every time. I'd be sure it's the cables too if not for the fact that I've tried so many different varities of them. So maybe it's the device? Maybe, but it worked fine the last time I used it. No, I have not tried connecting directly to a serial port to test, but I will. But what leaves me suspicious that it might be something else is the aforementioned "lot of posts to forums all over the Web with this problem," so I don't think I'm alone.
I wonder if it's an OS X issue with "drivers" for these cables. I know there aren't drivers involved, per se, but aren't there certain USB settings via vendor, etc, that can be set as preferences that might be causing me trouble? I don't know, I've done a lot of work trying to figure this out, let's see what EE can do for me.